HTTP: Squid Proxy Processing Denial of Service

This signature detects attempts to exploit a known vulnerability against Squid proxy. A successful attack can result in a denial-of-service condition.

Extended Description

Squid 3.x before 3.5.15 and 4.x before 4.0.7 does not properly append data to String objects, which allows remote servers to cause a denial of service (assertion failure and daemon exit) via a long string, as demonstrated by a crafted HTTP Vary header.

Affected Products

Squid-cache squid

References

CVE: CVE-2016-2569

Short Name
HTTP:PROXY:SQUID-DOS
Severity
Minor
Recommended
True
Recommended Action
Drop
Category
HTTP
Keywords
CVE-2016-2569 Denial Processing Proxy Service Squid of
Release Date
05/02/2016
Supported Platforms

srx-branch-19.3

vsrx3bsd-19.2

srx-19.4

vsrx3bsd-19.4

srx-branch-19.4

vsrx-19.4

vsrx-19.2

srx-19.3

srx-branch-12.3

mx-12.3

mx-19.4

vmx-19.4

mx-19.3

vsrx-12.3

vmx-19.3

srx-12.3

Sigpack Version
3337
False Positive
Unknown
Vendors

Squid-cache

CVSS Score

5.0

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